- hls_formats = self._extract_m3u8_formats(format_url, video_id, 'flv')
- for fmt in hls_formats:
- fmt['preference'] = preference(format_id)
- formats.extend(hls_formats)
+ formats.extend(self._extract_m3u8_formats(
+ format_url, video_id, 'mp4', preference=preference(format_id)))